January 2024
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22 Reads
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January 2024
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22 Reads
December 2022
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6 Reads
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1 Citation
Journal of the Korea Academia-Industrial cooperation Society
August 2022
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79 Reads
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5 Citations
Among the horticulture facilities in Korea, the hydroponic cultivation method has been increasingly used. This study aimed to identify fungi and bacterial species in hydroponic cultivation and highlight the need for sterilization to recycle the discharged drainage. Samples were collected from a number of paprika, tomato, and strawberry hydroponic greenhouses. Vinyl and glass greenhouses were studied, and the drainage discharge was of two types: direct discharge and collection after discharge. In total, 24 fungal and six bacterial species were detected from 399 and 151 densities, respectively. The primary fungal and bacterial species identified were from the genera Fusarium, Pythium, and Phytophthora as well as Agrobacterium and Pseudomonas. Statistical analysis revealed that the species number and density of fungi and bacteria were higher in strawberry than in tomato or paprika. These values were higher for vinyl greenhouses than for glass greenhouses. This study on the reuse of drainage from hydroponic greenhouses may contribute to the recycling of resources and reduction in water pollutant emission; this will thus help us to implement sustainable horticulture practices.
August 2022
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118 Reads
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3 Citations
Imparting knowledge on agriculture and ecology is important for the preservation of nature. This study suggested the design of a rice–fish mixed farming (RFMF) paddy for urban agriculture and ecological education in Korea. This RFMF paddy supports the growth of rice as well as freshwater fish. ANOVA statistical analysis was conducted, and an RFMF paddy was necessary for urban agriculture/education and confirmed that biodiversity was high. To this aim, the design of a 10 m × 10 m RFMF paddy was suggested. Vegetation, insects, and aquatic invertebrates of the RFMF paddy constituted approximately 40 species more than a conventional paddy. The quality of an actual farm’s soil and water was assessed, and techniques for the co-cultivation of rice and fish are proposed. The soil must comply with the standards of Korean paddy soil, and the water must be in the temperature range of 15 to 35 °C. In the proposed design, approximately 44.0 kg rice can be produced, and catfish can grow up to 30 cm. The study suggested many experiences using rice and freshwater fish. On the basis of our study design, a virtual model of an RFMF paddy was developed in consideration of the accessible space. The development of RFMF paddies in educational institutions can promote biodiversity in cities while providing ecological education regarding aquatic plants and insects.
December 2021
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13 Reads
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2 Citations
Journal of Environmental Science International
August 2021
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5 Reads
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1 Citation
Journal of the Korea Academia-Industrial cooperation Society
August 2021
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6 Reads
Journal of the Korea Academia-Industrial cooperation Society
August 2019
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3 Reads
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3 Citations
Journal of Korean Society of Rural Planning
November 2018
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9 Reads
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3 Citations
Journal of Korean Society of Rural Planning
November 2018
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8 Reads
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2 Citations
Journal of Korean Society of Rural Planning
... They were designed to improve ambient conditions, enhance photosynthesis, and control internal temperatures. Engler et al. (2021) and Lim et al. (2022) research reported that air-circulation fans reduced energy consumption and were more effective when used with fog systems. Similarly, Oh et al. (2016) showed improved pollination rates and fruit yields in cucumber cultivation when air-circulation fans were used during high temperatures. ...
December 2022
Journal of the Korea Academia-Industrial cooperation Society
... Phytophthora disease progression is usually associated with higher temperature and moisture [109]. In a recent report in Korea [110], Phytophthora DNA was detected in hydroponic nutrient wastewater from facilities growing tomatoes, paprika, and strawberries. These are the most hydroponically cultivated crops in Korea, and strawberry growing facilities exhibited the highest rate of Phytophthora, suggesting the need for nutrient solution sterilization when recycling to reduce the risk of disease persistence in the facility. ...
August 2022
... Rice-fish cultivation can potentially benefit groundwater recharge, water storage, and climate change mitigation efforts [112]. In Thailand, integrating RASp increases water storage by 16,682.3 ...
August 2022
... According to the references, the groundwater level increases during rainfall, and EC and Temp. change due to the dilution effect [28]. There were relatively consistent concentration trends during rainfall events. ...
August 2021
Journal of the Korea Academia-Industrial cooperation Society
... For habitat function and assessment of cultivated lands, Son et al. (2018) suggested ways to create and maintain feeding places when comparing the bird diversity of paddy field wetland and greenhouse complexes in design. Loesh and Kaminski (1989) reported that inhabitation of dabbling ducks in wetlands from paddy fields is affected significantly by the vegetation structure and surrounding land use. ...
November 2018
Journal of Korean Society of Rural Planning
... (1) Mistakenly attempting to apply the sewage treatment methods used in urban areas to rural settings without considering the unique operational and maintenance demands of small-scale facilities. Compared with urban domestic sewage treatment, rural domestic sewage treatment has fewer types of pollutants in sewage, a lower sewage concentration, and less treatment capacity, generally not more than 30 m 3 /d [23]. While it may be possible to adopt similar treatment processes, it is crucial to ensure that construction standards are met, devices are complete, and manual and online testing instruments are available for complex operation and maintenance procedures. ...
November 2018
Journal of Korean Society of Rural Planning
... Because the main source of groundwater nitrate contamination is the intensive use of organic manure and fertilizers in farming activities, land use is the main determining factor, while the main agricultural type in NSW is a water-curtain-type greenhouse (Cho et al. 2012;Kwon et al. 2020). Usually, greenhouse facilities are built on an existing rice paddy field (Son et al. 2018). For the points where land cover was classified as paddy fields in the GIS data, each point was shown on a Google map (Google Earth), and points with greenhouse facilities were separately extracted and compared. ...
May 2018
Journal of Korean Society of Rural Planning
... Republic of Korea's facility horticulture industry ranks among the top in the world, along with China, Spain, the Netherlands, and Japan, and is considered a "white revolution" due to the large income it generates [1][2][3][4][5][6][7][8][9]. For this reason, greenhouse horticulture in Korea continues to grow [10,11]. ...
August 2019
Journal of Korean Society of Rural Planning
... For this reason, greenhouse horticulture in Korea continues to grow [10,11]. However, many environmental and ecological problems have been reported in facility horticulture, including land use change, groundwater depletion, waste disposal, and nonpoint pollution [12][13][14][15][16][17]. Among them, the use of nutrient solutions and the resulting wastewater discharge is a major problem [18][19][20][21]. ...
April 2017
Protected horticulture and Plant Factory
... The increased impermeable ground surface caused by urbanization causes temporary rainfall leakage into rivers, triggering river water pollution [19], groundwater depletion due to the decreased runoff infiltration rate [18], stream drying [19], difficulties in securing water resources [20], urban heat islandization [20], and ecosystem disruption [19]. The problems from expanding the impermeable area go beyond cities and induce problems in rural and agricultural districts [20][21][22][23][24]. Groundwater recharge is a vital ecosystem service function [25,26], and agricultural regions have been found to have an excellent groundwater recharge function [27,28]. ...
December 2015
Journal of Korean Society of Rural Planning